Top answers

Why should we care about conserving nature?

A wide number of answers can be accepted for this questions as long as they mention the following: economic and sociologic values of nature; ethics; our entire dependence on raw materials that come from nature.
JF
Answered by Jessica F. • Biology tutor
2459 Views

Explain the concept of natural selection. Give an example.

Natural selection is a theory that became popular after Charles Darwin work and states that traits of living organisms are selected according to their ability to adapt to the environment. It implies that eve...
JF
Answered by Jessica F. • Biology tutor
3684 Views

Cite examples of biotic and abiotic factors that influence living organisms in an ecosystems.

Abiotic: temperature, rainfall, oxygen, nutrient availability Biotic: competition and predation between species, migration
JF
Answered by Jessica F. • Biology tutor
5892 Views

What are biofuels? Give names of at least two biological sources.

Biofuels are fuels made from organic biomass, i.e., plant material. Sugarcane and sugar beet are sources of biofuels.
JF
Answered by Jessica F. • Biology tutor
3796 Views

Explain how soft engineering could protect a coastline

In this question, you need to mention and describe forms of soft engineering e.g beach nourishment, land use management and coastal realignment. It is not enough to only describe the strategy, but provide a ...
HD
Answered by Hannah D. • Geography tutor
10057 Views